сжатый воздух дыхательный аппарат

Compressed air breathing apparatus meets Standard of China Regulation GA-2004 Code and EN136 &EN137 in Europe, It is made of fire-resistant material,compatible with different types of cylinders,support 40-90 minutes cylinders,It provides breathing protection for users in the environment filled with poisonous air or lacking in oxygen. When it is used normally, the pressure inside the veil is always higher than the outside environment. It prevents the poisonous air from entering the veil, so as to protect the users. LDF is designed simple, easy to use,reliable and secure. Shanghai laidi Science and TechnologyCO; LTDpromise thatis the one of your best choices. .